How severe is CVE-2019-20357?

CVE-2019-20357 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-20357 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20357?

CVE-2019-20357 primarily affects Trendmicro Antivirus + Security 2019. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20357?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-20357 published?

CVE-2019-20357 was published on 2020-01-18 and last updated on 2026-06-17.

CVE-2019-20357

CVE-2019-20357 is a high-severity vulnerability in Trendmicro Antivirus + Security 2019 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-428.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-428
Affected product: Trendmicro Antivirus + Security 2019
Published: 2020-01-18
Last modified: 2026-06-17

Description

A Persistent Arbitrary Code Execution vulnerability exists in the Trend Micro Security 2020 (v160 and 2019 (v15) consumer familiy of products which could potentially allow an attacker the ability to create a malicious program to escalate privileges and attain persistence on a vulnerable system.

Frequently asked questions

What is CVE-2019-20357?: A Persistent Arbitrary Code Execution vulnerability exists in the Trend Micro Security 2020 (v160 and 2019 (v15) consumer familiy of products which could potentially allow an attacker the ability to create a malicious program to escalate privileges and attain persistence on a vulnerable system.
How severe is CVE-2019-20357?: CVE-2019-20357 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-20357 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20357?: CVE-2019-20357 primarily affects Trendmicro Antivirus + Security 2019. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20357?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-20357 published?: CVE-2019-20357 was published on 2020-01-18 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:trendmicro:antivirus_\+_security_2019:15.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:antivirus_\+_security_2020:16.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:internet_security_2019:15.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:internet_security_2020:16.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2019:15.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2020:16.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:premium_security_2019:15.0:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:premium_security_2020:16.0:*:*:*:*:*:*:*

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